<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    ul{
      margin: 0;
      padding: 0;
    }
    ul{
      /*去掉图标*/
      list-style-type: none;
    }
    li{
      float: left;
      margin-right: 20px;
    }
  </style>
</head>
<body>
<ul>
  <li>首页</li>
  <li>免费课</li>
  <li>精品课</li>
  <li>直播课</li>
  <li>线上班</li>
  <li>线下班</li>
</ul>
</body>
</html>